CINCINNATI -- Reds pitcher Homer Bailey knew Thursday he would undergo an ultrasound test on Friday to see how well a small tear in the right flexor mass tendon in his forearm is healing. What Bailey didn't know is when he'd pitch again.

Bailey, who went on the disabled list Aug. 16, has yet to resume a throwing program. He recently underwent a platelet-rich plasma injection in an effort to speed his recovery.

"I don't really know a timetable," Bailey said. "No one does. It's just how quickly I can heal, more or less.

"Would I like to [resume throwing]? Absolutely I would. This isn't really something you can rush back. You can either do it once and do it right or you can try to rush it back and go back to square one. I've been through enough injuries."

Bailey didn't know how long he pitched with the injury but understood that he couldn't pitch again after his Aug. 7 start vs. the Indians.

"I've kind of been fighting stuff most of the year," Bailey said. "It's been a really, really tough year for me -- a pulled groin, a herniated disc in the back, elbow, I took a ball off the jaw, took a ball of my biceps. It's just been one of those years.

"Actually right after the All-Star break, my forearm was really feeling good. In the third or fourth inning of the Cleveland game, my elbow locked up on me. I don't personally think it was from throwing. I think I did it whenever I got a hit. I don't know. It could have been throwing because that's what we do. It could have been from hitting. The next day it didn't recover like it should have."

Mark Sheldon is a reporter for MLB.com. Read his blog, Mark My Word, and follow him on Twitter @m_sheldon. This story was not subject to the approval of Major League Baseball or its clubs.